Qwen 3.5 Chat Template Release with 21 Bug Fixes for Agent Workflows
A developer has released a patched chat template for Qwen 3.5 models, fixing 21 bugs encountered during agentic workflows. This is a drop-in replacement for the official template, requiring only a swap of the chat_template.jinja file.
Key Fixes
The developer specifically ran Qwen 3.5 35B for agentic workflows and addressed the following major issues:
- Tool Calling Crash: Fixed a crash related to
arguments | items(referenced as HF discussion #4). - Tool/Think Block Leak:
<tool_call>content no longer leaks into<think>blocks, with auto-disable thinking when tools are active. - Parallel Tool Calls: Calls are now properly separated with
\n\ndelimiters. - Deep Agent Loops: Prevents crashes after 5+ tool hops.
- Unknown Role Handling: Roles like 'planner' and 'critic' now gracefully fall back instead of causing a crash.
- Streaming Parsers: Provides clean XML boundaries for streaming.
- Configurable Truncation: Allows setting a maximum character limit for large tool arguments and responses.
- Developer Role Support: Adds support for roles like 'Claude Code', 'Codex', and 'OpenCode'.
A full list of all 21 fixes is available in the project's README.
Configuration
The template includes configurable variables. They can be set via command-line arguments:
--chat-template-kwargs '{"enable_thinking":true,"auto_disable_thinking_with_tools":true,"max_tool_response_chars":8192}'Compatibility & Testing
The template has been tested on the following platforms with the specified minimum versions:
- llama.cpp (b4242+)
- Open WebUI (v0.4.8+)
- vLLM (v0.6.4+)
- Ollama (v0.5.0+)
- LM Studio (v0.3.5+)
- Text Generation WebUI
It is compatible with all Qwen 3.5 models (35B, 27B, 14B, 9B, 4B, and the Coder series) and is backward-compatible with Qwen3 32B.
Source and License
The template is available for download on HuggingFace at barubary/qwen3.5-barubary-attuned-chat-template. It is released under the Apache 2.0 license, and the developer welcomes feedback and bug reports.
📖 Read the full source: r/LocalLLaMA
👀 See Also
Stockade: A New Orchestration Tool for Claude Code with Channel Support and Security Layers
Stockade is an orchestration tool built around Anthropic's Agent SDK that provides channel-based session management, RBAC, and fine-grained permissions for AI agents. It addresses limitations in OpenClaw and NanoClaw by offering more control while maintaining security through containerization and credential proxies.
TrustLog Dynamics: Python Daemon Uses Bond Math to Kill Rogue AI Agents
TrustLog Dynamics is a Python daemon that monitors AI agent API costs in real time and terminates processes using two quantitative finance methods: convexity detection for accelerating costs and zero-variance detection for mechanical loops.
Cortex: A Local Memory Layer for OpenClaw Agents with Ebbinghaus Decay
Cortex is an open-source memory tool built to solve context compaction issues in OpenClaw agents. It implements Ebbinghaus forgetting curves for fact decay, imports from files first, and runs as a single 19MB Go binary with SQLite.
McPherson AI releases two new QSR operations skills on ClawHub: food cost diagnostics and labor leak auditing
Two new free skills have been published on ClawHub: qsr-food-cost-diagnostic catches COGS issues weekly with a four-lever diagnostic, and qsr-labor-leak-auditor provides daily labor tracking with mid-week alerts to prevent overspend.